A "square mile" refers to the area occupied by a space that measures one mile long in each direction. Although this term is commonly used in the United States, there are different synonyms for this expression around the world. In the UK, a "square mile" is known as a "section." In Australia, a similar term is "square kilometer," which refers to the area of a square measuring one kilometer long on each side. In Canada, the equivalent term is "square kilometer" or "square league." Finally, in Europe, a "square mile" can be referred to as a "mile squared" or "mile with a square boundary".